Sureflap Microchip Cat Flap - Tunnel Extenders

SureFlap tunnel extenders can be used to create a longer approach tunnel to the SureFlap Microchip Cat Flap when it is installed in a wall. The SureFlap tunnel extender fits snugly onto the SureFlap Microchip Cat Flap and multiple extenders can be stacked together to form a tunnel of any length. The SureFlap microchip cat flap's tunnel is 7cm long and each tunnel extender adds 5cm to the length of the cat flap's tunnel.